Coupling



Jan. 8, 1935. an. 1,987,100

,. COUPLING Filed J l 2, 1951 Inventor BURNS DICK Att'y.

ber of-parts have been used which resulted in a Patented Jim. s, 1935 UNITED STATES COUPLING Burns Dick, Ferguson, 320.,

Electric CO 'P I'IHO St. I, M

tlon of Delaware assigns: to Wagner aces-peca- Application July 2, m1, Bel-hi mm serum. (on. zss- -se) lly invention relates to a hose connector and associated parts, particularly suitable for providing a fluid-tight Joint between the flexible hose leading to the wheel cylinders of .a hydraulic *6 brake m and the rigid tube from the source of pressure.

In prior connections of this type a large numioint of relatively large over-all dimensions and a high cost of manufacture. It is, therefore, the principal object of my inventionto construct a hose connector of the type referred to that contains a minimum number of parts, is very com.- pact and simple in construction, is capable int withstandinghigh pressures without leakage, and that can be manufa'cturedat a distinct saving in 1 1 Other and further objects of my invention will become apparent from the following description taken in connection with the accompanying drawing which illustrates a preferred embodi-' ment, and a modification thereof.

In the drawing Figure Us a diagrammatic view of a front wheel and a portion of the frame of a motor vehicle showing my novel hose connector and its relation to the surrounding parts; Figure 2 is a view, partly in elevation and partly in cross-section, of the preferred embodiment of my invention; and 1"igure3 is a view, partly in elesii vation and partly in cross-section, of a modification.

Referring to the drawing, and especially to Figinc 1, the numeral 1 indicates the front axle of "a ,motor vehicle, at the outer end of which is 25 moimted the wheel construction 2 by means of the steering knuckle 8. The wheel carries I am to the steering knuckle. The wheel cyl- 40, iuder 8 of the hydraulic brake applying system ll, struck-out portion is with an opening the frame surroimding the opening 14.

14 to receive mynoveLhose connector 15 by means of which a fluid-tight joint is formed between the flexible conduit or hose 11 and thecopper tube 18 leading from the source of fluid pressure (master cylinder). i "I Referring to Figure 2, my novel connector 15 will'now be described indetail. The hollow body member 1'7 is provided at one end with external threads. 18 and internal threads 19, and at the other end with-a wrench-receiving portion 20. 10

oftheringisserrated,asshownat22. Theinner is,

periphery of the body member on the end opposite the end having the threaded portion, ispro-' vided with grooves 23. The hose 11 extends into the grooved end of the body member and abuts the side of the ring 21. A nipple 24, provided 20 with a flanged end 25 abutting the ring 21, extends through the serrated opening of the ring 21 into the bore of the hose and is expanded, causing the hose material to be forced into the grooves 23. Also, during the process of expanding, the as material of the nipple is forced into the serrations 22 and thus securely held against longitudinal displacement. The flange 25 is formed with abeveled periphery 28 on the side adjacent the internal threads 19 of the fltting. i so The copper tube 16, leading from the source of pressure, is flared outwardly at its end, as shown at 27, in such a manner as to cooperate with the beveled periphery of the flange 25. A nut 28 I, having-extemal threads 29 is adapted to cooper; :5 ate with the internal threads 12 and surrounds the tube 16. 3121c and of the nut 28 is reamed outto provide a cone-shaped opening 30 to cooperate with the flared end of the tube. BY Disc ing the flared end'of the tube againstthe beveled 40 flange of the nipple and forcing the end of the nut against the flared end,,a fluid-tight joint is secured. The body member 17 of the connector is also provided with anexternal peripheral shoulder al adjacent the inner end of the threads 18 to form an abutment for 'the struck-out portion 13. of A lock washer 32 and nut 33,.- with the externalthreads 18,areprovidedto-tightly clamp the iitting-membertotheportion l3 andtherebyform a rigid support for the entire assembly.

In the disclosed in Iigure 3, the hollow body member 1'! is prmided with external threads 18' at one end-and a wrench-req.

ceiving portion 20 in a manner similar to .the preferred embodiment. The threaded end, however, is longer, and the portion 20 also serves as the abutting shoulder 31' for the struck-out support 13 of the vehicle frame. The body member is provided with an internal shoulder 21' for abutting the end of the hose or conduit. The nipple 24 extends completely through the fitting and is expanded in the same manner as the nipple 24 to hold the end of the hose in the fitting by means of the grooves 23'.

The end of the body member 17 is beveled, as shown at 34, and has, adjacent thereto, the turned-back flanged end 25' of the nipple. The flared end 27' of the tube 16 is adapted to lie adjacent the flange 25' of the nipple and to be tightly pressed thereagainst to form a fluidtight joint by means of the cone-shaped nut 28' cooperating with the threads 18'- of the body member. The nut 33' also cooperates with the threads 18 to tightly clamp the body member against the supporting portion 13 through the washer 32'.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In hydraulic braking apparatus for vehicles embodying a flexible hose and metallic tubing for transmitting fluid pressure, means for connecting the hose and tubing which comprises a tube coupling member and a hose connector provided with a threaded portion for engagement with said tube coupling member, said hose connector having one end permanently secured to.

embodying a flexible hose and metallic tubing for transmitting fluid pressure, means for connecting the hose and tubing which comprises a tube coupling member and a hose connector provided with a threaded portion for engagement with said tube coupling member, said hose connector having one end permanently secured to the hose and beingprovided with an externally threaded extension and with an external shoulder of larger diameter than said threaded extension, and a clamping nut on said threaded portion and adapted to cooperate with the shoulder to clamp the connector to a part of the vehicle, said connector also comprising a nipple extending into the bore of the hose andhaving an extension engaged by the tubing, said engaging surfaces being held in liquid-tight relation by the tube coupling. 1

3. The combination with a support, of a coupling comprising a hollow body member having an integral internal ring spaced from the ends thereof, a flexible conduit element permanently secured to one end of said body member, means carried by the internal ring of the body member provided with a conical surface lying within the body member, a tube having a flared end extending into the end of the body member which is opposite the end connected to the conduit, means surrounding the tube and engaging the body member for forcing the flared end of the tube against the conical surface, and means for securing the body member to the support.

4. In apparatus of the class described, the comand provided with a beveled flange lying within the body member adjacent the internal shoulder of said body member, a tube extending into said body member and provided with a flared end adapted to engage the beveled flange of the nipple, means for holding the flared end of the tube in fluid-tight cngagement'with the beveled flange of thenipple, and means for securing the body member to the support.

5. In apparatus of the class described, the

combination with a support, of a conduit, a body member connected at one of its endswith the conduit and provided with an internal ring lying within the body member and abutting the end of the conduit, a nipple extending into the conduit and provided with a flange lying within the body member and abutting the internal ring 'of the body member on the side opposite the con-' duit, a tubehaving a flanged end adapted to engage the flange of the nipple, means for holding the flanges in fluid-tight engagement, and means for clamping the body member to the support;

6. In hydraulic braking apparatus for vehicles, the combination of a support carried by the vehicle and provided with an opening, a flexible hose, a terminal member surrounding the end of said hose and permanently connected thereto, the end of said terminal member being externally threaded and. extending through said ,openingin the support and-said terminal member having an integral shoulder for engaging the support, a clamping nut cooperating with said external threads for securing the terminal member to the support, a tube, and means for connecting said tube to the end of the terminal member which extends through the opening in the support.

'7. In apparatus of the class described, the combination with a support having an opening therethrough, of a flexible hose, a body member provided with an internal shoulder and permanently connected at one of its ends with the hose, said body member also being provided with an externally threaded portion extending through the opening in the support and an external shoulder for engaging the support, a nut cooperating with the external threads for clamping the body mem- -ber to the support, a nipple extending into said hose and provided with a flanged end lying within the body member and abutting the internal shoulder, a tube extending into the body member.

and having a flanged end engaging the flanged end of the nipple, and means for maintaining the flanges in fluid-tight eng ement.

8. In apparatus of the class described, the combination with a support having an opening therethrough, of a conduit,';a body'member permanently connected. at one. of its ends with the conduit, a nipple carried by said body member and extending into said conduit, said body member being providedwith an annular extension projecting beyond the end of the nipple and extending through the opening in the support, said body member also being provided with an exterfor clamping the shoulder of the body member tension projecting through said opening in the against the support. Y support, means for securing the extension to the 9; In apparatus of the class deseribed, the comsupport, a fluid transmitting tube, and coupling bination of a support having an opening theremeans for securing the tube in fluid-tight rela- Ii through, of a flexible hose, a fitting permanently tiozi with the extension of the hose fitting.

secured to the hose and having an integral ex- BURNS DICK. 

